[dissenter]

You're approaching it from the wrong perspective. English is the lingua franca. If your colleague were really nice, he would translate his message into Hindi, but that isn't an effective use of time. Neither is writing in Simple English.

Let the recipient use a dictionary. After a while he won't have to anymore.

[makecheck]

That isn't really fair to the recipient. Why should he or she spend extra time figuring out what you said, and you spend no time at all making it easier to read?

[Retric]

If the company is paying me 10x what it's paying them then it's probably more cost effective for me to brain dump (if it's clear) than it is to clean up for the reader. This is not about outsourcing the same thing happens with emails from senior management.